[byefruit]

The openrouter rankings can be biased.

For example, Google's inexplicable design decisions around libraries and APIs means it's often worth the 5% premium to just use OpenRouter to access their models. In other cases it's about which models particular agents default to.

Sonnet 4 is extremely good for tool-usage agentic setups though - something I have found other models struggle to do over a long-context.